126196919 has 2 divisors, whose sum is σ = 126196920. Its totient is φ = 126196918.

The previous prime is 126196909. The next prime is 126196921. The reversal of 126196919 is 919691621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126196919 - 2⁸ = 126196663 is a prime.

It is a super-2 number, since 2×126196919² = 31851324730185122, which contains 22 as substring.

Together with 126196921, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126196919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126196909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63098459 + 63098460.

It is an arithmetic number, because the mean of its divisors is an integer number (63098460).

Almost surely, 2^126196919 is an apocalyptic number.

126196919 is a deficient number, since it is larger than the sum of its proper divisors (1).

126196919 is an equidigital number, since it uses as much as digits as its factorization.

126196919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 44.

The square root of 126196919 is about 11233.7402052923. The cubic root of 126196919 is about 501.5908251826.

The spelling of 126196919 in words is "one hundred twenty-six million, one hundred ninety-six thousand, nine hundred nineteen".